import Vue from 'vue';
import { IWidget, IMessageBusService, IMessageBusCallback, MessageBusManager, IMenu } from '@csnext/cs-core';
export declare class WidgetBase extends Vue {
    /** access the original widget from configuration */
    widget: IWidget;
    busManager: MessageBusManager;
    constructor();
    subscribe(bus: IMessageBusService | undefined, topic: string, callback: IMessageBusCallback, id?: string): void;
    beforeMount(): void;
    beforeDestroy(): void;
    addMenuItem(menu: IMenu): void;
}